The Bright Ideas Surface Mount LED Puck Light # 277-000119 referenced in your question will be a great option for replacing the puck light in your 2014 Solitude 5th Wheel Trailer. This assembly measures 3-5/8 inches in diameter and features a dark frost acrylic lens. It has 6, bright LEDs that will last much longer and burn brighter than standard incandescent lights. This is a surface mount installation and has a simple 2-wire design for ground and power.
For a similar puck light that...view full answer...

It is very odd that the Bright Ideas Surface Mount LED Puck Light # 277-000120 has no way of indicating which of the wires is ground and which is positive. What you'll have to do is use trial and error like what our demo guy does in the video I attached at the 2:00 minute mark to find the orientation that allows the light to work.
The good news is you can't damage the light by wiring it backwards. It simply just wouldn't light up.view full answer...

I went out in our warehouse and grabbed a Bright Ideas 18" Surface Mount LED Strip Light # 277-000166 to measure the holes and found they are 3/16 of an inch and are 1 inch apart measured on center.
The mounting holes do have metal sleeves ran through them, but I still wouldn't recommend using rivets as a way to secure the strip. Bolts and nut would be ideal.view full answer...

LED light strip # 277-000169 is not really meant to go under water. It has bare wires on one end and a connector on the other end to plug in another strip so the potential for a short is high. I recommend something different such as # CM93296 which is waterproof and will hold up nicely being temporarily submerged on a boat trailer.view full answer...

I reached out to my contact at Bright Ideas and the Bright Ideas 6-Light Surface Mount LED Puck Lights with Switch 3-5/8" - 12V # 277-000120 has a one year manufacturer's warranty from date of purchase.view full answer...